Adopted in 1912, the 9mm Steyr was the service ammunition for most branches of the military in Austria-Hungary during World War I and remained the service ammunition for Austria, Romania and Chile between the World Wars.[2] Some MP 34 submachine guns were also issued in this caliber in addition to 9×25mm Mauser. When the Austrian Army was incorporated in the Wehrmacht in 1938 following the Anschluss, many Steyr M1912 pistols and MP 34 submachine guns were rebarrelled to 9×19mm Parabellum for standardization purposes.
Design
The cartridge headspaces on the mouth of the case. Its performance is close to that of the .38 ACP. Unrelated to the modern 9×23mm Winchester, it is similar to the 9×23mm Largo cartridge in performance, but their dimensions are just different enough to make them non-interchangeable.[3]
For handloading, reloadable Boxer-primed cartridge cases can be made from 5.56×45mm NATO brass. This requires inside neck-reaming, as such a conversion would otherwise leave unacceptably thick mid-to-rear case walls from the original cartridges to form the mouths of the new, shortened cases. At least one commercial source apparently can produce such a forming die set, complete with reamer. Loading data would be much like .38 ACP.
Gallery
Steyr M1912 pistol with holster and 9×23mm Steyr ammunition on stripper clips
Steyr M1912 pistol with box and stripper clip of 9×23mm Steyr ammunition
23mm, steyr, similarly, dimensioned, cartridges, 23mm, also, known, steyr, centerfire, pistol, cartridge, originally, developed, steyr, m1912, pistol, typepistolplace, originaustria, hungaryservice, historyused, byaustro, hungarian, armyproduction, historydesi. For similarly dimensioned cartridges see 9 23mm The 9 23mm Steyr also known as 9mm Steyr is a centerfire pistol cartridge originally developed for the Steyr M1912 pistol 9 23mm Steyr 1 TypePistolPlace of originAustria HungaryService historyUsed byAustro Hungarian ArmyProduction historyDesignerΠW G Produced1911SpecificationsCase typeRimless straightBullet diameter9 03 mm 0 356 in Neck diameter9 62 mm 0 379 in Base diameter9 70 mm 0 382 in Rim diameter9 70 mm 0 382 in Rim thickness1 25 mm 0 049 in Case length23 20 mm 0 913 in Overall length32 99 mm 1 299 in Primer typeSmall pistolBallistic performanceBullet mass type Velocity Energy115 gr 7 g FMJ 1 025 ft s 312 m s 268 ft lbf 363 J 115 gr 7 g FMJ 1 080 ft s 330 m s 298 ft lbf 404 J 115 gr 7 g FMJ 1 230 ft s 370 m s 388 ft lbf 526 J Test barrel length 128 mm 5 0 in Source s 1 Hornady 2 Fiocchi 3 Hirtenberger Contents 1 History 2 Design 3 Handloading 4 Gallery 5 ReferencesHistory EditAdopted in 1912 the 9mm Steyr was the service ammunition for most branches of the military in Austria Hungary during World War I and remained the service ammunition for Austria Romania and Chile between the World Wars 2 Some MP 34 submachine guns were also issued in this caliber in addition to 9 25mm Mauser When the Austrian Army was incorporated in the Wehrmacht in 1938 following the Anschluss many Steyr M1912 pistols and MP 34 submachine guns were rebarrelled to 9 19mm Parabellum for standardization purposes Design EditThe cartridge headspaces on the mouth of the case Its performance is close to that of the 38 ACP Unrelated to the modern 9 23mm Winchester it is similar to the 9 23mm Largo cartridge in performance but their dimensions are just different enough to make them non interchangeable 3 Handloading EditThis section does not cite any sources Please help improve this section by adding citations to reliable sources Unsourced material may be challenged and removed Find sources 9 23mm Steyr news newspapers books scholar JSTOR December 2018 Learn how and when to remove this template message For handloading reloadable Boxer primed cartridge cases can be made from 5 56 45mm NATO brass This requires inside neck reaming as such a conversion would otherwise leave unacceptably thick mid to rear case walls from the original cartridges to form the mouths of the new shortened cases At least one commercial source apparently can produce such a forming die set complete with reamer Loading data would be much like 38 ACP Gallery Edit Steyr M1912 pistol with holster and 9 23mm Steyr ammunition on stripper clips Steyr M1912 pistol with box and stripper clip of 9 23mm Steyr ammunition Left to right 9 23mm Largo 9 19mm Parabellum 9 23mm Winchester and 9 23mm SteyrReferences Edit 9mm Largo vs Others Archived from the original on 2008 06 25 Retrieved 2009 07 10 Wilson R K Textbook of Automatic Pistols p 235 Plantersville S C Small Arms Technical Publishing Company 1943 Jeff John August 2009 Q amp A Guns Magazine p 35 Retrieved from https en wikipedia org w index php title 9 23mm Steyr amp oldid 1000809885, wikipedia, wiki, book, books, library,
